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Cheap flights from Phoenix Sky Harbor Intl Airport to Denver from £51

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Denver Intl are usually found in February or January, booked 87 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from Sky Harbor Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 January 2026.

Round-trip from

£102

One-way from

£51

Popular in

June

Cheapest in

February

Average price

£95

Good one-way deal

£103 or less
United Airlines
  • United Airlines
  • 10/2-17/2
  • Nonstop
  • 4h 02m total
  • Phoenix to Denver
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Alaska Airlines
  • Alaska Airlines
  • 25/2
  • 1 total stop
  • 5h 20m total
  • Phoenix to Denver
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Highest demand for flights based on searches. 12% potential increase in price (£13 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Denver Intl.
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Find flight deals from Sky Harbor Intl to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Sky Harbor Intl to Denver
Explore the most affordable flight options available from Sky Harbor Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 January 2026.

Tue 10/217:34
PHX
-
DEN
Nonstop1h 56m
United Airlines
Tue 17/219:15
DEN
-
PHX
Nonstop2h 06m
United Airlines
Deal found 11/1£102
Tue 10/209:40
PHX
-
DEN
Nonstop1h 55m
Southwest
Tue 17/206:45
DEN
-
PHX
Nonstop2h 10m
Southwest
Deal found 12/1£109
Tue 10/311:22
PHX
-
DEN
1 stop5h 26m
Alaska Airlines
Tue 24/313:16
DEN
-
PHX
1 stop5h 30m
Alaska Airlines
Deal found 12/1£117
Wed 4/216:15
PHX
-
DEN
Nonstop1h 45m
Southwest
Sat 7/215:50
DEN
-
PHX
Nonstop2h 00m
Southwest
Deal found 13/1£117
Thu 19/216:55
PHX
-
DEN
Nonstop1h 45m
Southwest
Sun 22/207:55
DEN
-
PHX
Nonstop2h 15m
Southwest
Deal found 12/1£132
Wed 4/217:00
PHX
-
DEN
2 stops17h 53m
Alaska Airlines
Tue 10/208:04
DEN
-
PHX
1 stop5h 56m
Alaska Airlines
Deal found 11/1£138
Wed 11/218:20
PHX
-
DEN
1 stop4h 16m
Delta
Sun 15/218:12
DEN
-
PHX
1 stop5h 17m
Delta
Deal found 11/1£139
Fri 6/219:27
PHX
-
DEN
Nonstop1h 56m
United Airlines
Sat 7/213:25
DEN
-
PHX
Nonstop2h 00m
United Airlines
Deal found 11/1£140
Tue 10/211:00
PHX
-
DEN
1 stop12h 35m
Alaska Airlines
Tue 17/207:40
DEN
-
PHX
1 stop8h 05m
Alaska Airlines
Deal found 12/1£141
Sat 25/406:12
PHX
-
DEN
1 stop4h 54m
Alaska Airlines
Wed 29/413:02
DEN
-
PHX
1 stop6h 24m
Alaska Airlines
Deal found 12/1£143
Thu 12/208:20
PHX
-
DEN
1 stop9h 28m
Alaska Airlines
Sun 15/218:45
DEN
-
PHX
1 stop4h 57m
Alaska Airlines
Deal found 12/1£145

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sky Harbor Intl to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 January 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Denver that are best for you.

Fly from

Sky Harbor Intl

Fly to

Denver

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 10/2

17:34-19:30

Nonstop1h 56m

Denver Intl

Tue 17/2

19:15-21:21

Nonstop2h 06m

£102

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 20/2

20:20-11:38

1 stop15h 18m

Denver Intl

Sat 21/2

18:45-23:42

1 stop4h 57m

£117

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 10/2

14:35-18:40

1 stop4h 05m

Denver Intl

Tue 17/2

06:45-08:55

Nonstop2h 10m

£130

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 19/2

16:55-18:40

Nonstop1h 45m

Denver Intl

Sun 22/2

07:55-10:10

Nonstop2h 15m

£132

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 20/2

12:28-17:48

1 stop5h 20m

Denver Intl

Fri 27/2

18:45-23:42

1 stop4h 57m

£132

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 11/4

19:30-22:15

Nonstop1h 45m

Denver Intl

Wed 15/4

10:35-11:35

Nonstop2h 00m

£132

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 6/2

08:30-10:27

Nonstop1h 57m

Denver Intl

Sat 7/2

13:25-15:25

Nonstop2h 00m

£140

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 13/4

20:10-22:55

Nonstop1h 45m

Denver Intl

Sat 18/4

19:05-20:05

Nonstop2h 00m

£143

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 12/2

10:45-15:02

1 stop4h 17m

Denver Intl

Sun 15/2

15:59-22:29

1 stop6h 30m

£146

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 12/2

10:45-15:02

1 stop4h 17m

Denver Intl

Mon 16/2

18:20-00:42

1 stop6h 22m

£146

Flights are sorted by cheapest return flights first.

Deals found on 11/1

Showing 1-10 of 22 results
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Best time to book a flight from Sky Harbor Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Sky Harbor Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Denver

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from Sky Harbor Intl to Denver. Price data was last updated on 9 January 2026.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Denver, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £39). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £76). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to DEN?

Find hourly flight availability from Sky Harbor Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 January 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 63% on flights from Phoenix Sky Harbor Intl Airport to Denver by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 33 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Denver Intl from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Denver?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Denver in 4h 05m. Fly via Alaska Airlines or Southwest to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Denver is about 601 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Denver?

    Consider Lufthansa (85%), SkyWest Airlines (83%) or Volaris (83%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Denver.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Denver?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Denver is generally £105, our data shows the cheapest flight currently is £102. When looking at the most popular route, (Phoenix Sky Harbor Intl - Denver Intl), you can expect to pay £82 for that flight.

  • Can I find deals for flights from Sky Harbor Intl to Denver that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Denver.

  • Can I find deals for business class flights from Sky Harbor Intl to Denver?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

    Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £39). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £76). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Can Cheapflights find flights from Sky Harbor Intl to Denver with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Sky Harbor Intl today and book when prices fit your budget.

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